MAX4990E Ver la hoja de datos (PDF) - Maxim Integrated

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MAX4990E

High-Voltage, ±15kV ESD-Protected Electroluminescent Lamp Driver

Maxim Integrated 

High-Voltage, ±15kV ESD-Protected

Electroluminescent Lamp Driver

ELECTRICAL CHARACTERISTICS (continued)

(VDD = +2.4V to +5.5V, CLAMP = 10nF, CCS = 3.3nF, LX = 220µH (ISAT = 170mA, RS = 5.5Ω), TA = TMIN to TMAX, unless otherwise

noted. Typical values are at VDD = +3.0V and TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

BOOST CONVERTER

Output Peak Voltage

Boost Switching Frequency

Switch On-Resistance

LX Leakage Current

CS Input Current

CONTROL INPUT SW

VDD = +3V, DIM = +0.5V forced externally

42

50

61

VCS VDD = +3V, DIM = +1V forced externally

85

100

115

V

VDD = +3V, DIM = +1.3V forced externally

105

125

140

fSW

CSW = 96pF, RSLEW = 375kΩ

80

100 120

kHz

RLX

ISINK = 25mA, VDD = +3V

20

Ω

ILX

VLX = +125V

-1

+1

µA

ICS

No load, VCS = +125V, EN = 0V, DIM = 0V

50

µA

Input Voltage-High Threshold

Input Voltage-Low Threshold

VIH_SW

VIL_SW

RSLEW = 375kΩ

RSLEW = 375kΩ

0.9

0.98 1.06

V

0.43 0.49 0.55

V

Input Low Current

IIL_SW

RSLEW = 375kΩ, CS = +40V, EL = VDD,

DIM = VDD

43

77

µA

Input High Current

IIH_SW

RSLEW = 375kΩ, CS = +40V, EL = VDD,

DIM = VDD

5.0

7.5

µA

CONTROL INPUT EL

Input Voltage-High Threshold

Input Voltage-Low Threshold

Input Low Current

Input High Current

CONTROL INPUT SLEW

VIH_CEL

VIL_CEL

IIL_CEL

IIH_CEL

RSLEW = 375kΩ

RSLEW = 375kΩ

RSLEW = 375kΩ

RSLEW = 375kΩ

1.08

1.32

V

0.22

0.39

V

1.2

1.87

µA

1.2

1.87

µA

Force Voltage

High-Voltage Output Slew Rate

CONTROL INPUT DIM

VFORCE

ISOURCE = 20µA

RSLEW = 375kΩ

0.89 0.95 1.04

V

30

V/100µs

Input Logic-High Voltage

Input Logic-Low Voltage

Input Low Current

Input High Current

PWM Frequency Range

VIH_DIM

VIL_DIM

IIL_DIM

IIH_DIM

Output voltage (max)

Output voltage (off)

VDIM = 0V, RSLEW = 375kΩ

VDIM = VDD

1.3

0.15

2.22

3.0

-1

+1

0.2 to 1

V

V

µA

µA

MHz

Low-Peak Detector Threshold

Low-Peak Detector Hysteresis

CONTROL INPUT EN

VLPD

VLPD_HYST

0.15

0.35

V

100

mV

Input Voltage-High Threshold

Input Voltage-Low Threshold

Input Low Current

Input High Current

VIH_EN

VIL_EN

IIL_EN

IIH_EN

1.2

V

0.2

V

-1

+1

µA

-1

+1

µA

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